package com.atguigu.rabbitmq.springbootrabbitmq.config;

import org.springframework.amqp.core.*;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author: like
 * @Date: 2021/07/20 8:07
 */
@Configuration
public class ConfirmConfig {

    //交换机
    public static final String CONFIRM_EXCHANGE_NAME = "confirm.exchange";
    //队列
    public static final String CONFIRM_QUEUE_NAME = "confirm.queue";
    //RoutingKey
    public static final String CONFIRM_ROUTING_KEY = "key1";

    ///////////////////////////关于备份的

    //备份交换机
    public static final String BACKUP_EXCHANGE_NAME = "backup.exchange";
    //备份队列
    public static final String BACKUP_QUEUE_NAME = "backup.queue";
    //报警队列
    public static final String WARNING_QUEUE_NAME = "warning.queue";



//    //声明交换机 Exchange
//    @Bean("confirmExchange")
//    public DirectExchange confirmExchange() {
//        return new DirectExchange(CONFIRM_EXCHANGE_NAME);
//    }


    //声明确认队列
    @Bean("confirmQueue")
    public Queue confirmQueue() {
        return QueueBuilder.durable(CONFIRM_QUEUE_NAME).build();
    }

    //声明确认队列绑定关系
    @Bean
    public Binding queueBindingExchange(@Qualifier("confirmQueue") Queue confirmQueue,
                                        @Qualifier("confirmExchange") DirectExchange confirmExchange) {
        return BindingBuilder.bind(confirmQueue).to(confirmExchange).with(CONFIRM_ROUTING_KEY);
    }

    //************************以下是关于备份的******************************

    //备份交换机
    @Bean("backupExchange")
    public FanoutExchange backupExchange() {
        return new FanoutExchange(BACKUP_EXCHANGE_NAME);
    }

    //声明确认 Exchange 交换机的备份交换机
    @Bean("confirmExchange")
    public DirectExchange confirmExchange() {
      return  ExchangeBuilder.directExchange(CONFIRM_EXCHANGE_NAME)
                .durable(true)
                //设置该交换机的备份交换机
                .withArgument("alternate-exchange", BACKUP_EXCHANGE_NAME)
                .build();
    }

    //备份队列
    @Bean("backupQueue")
    public Queue backupQueue() {
        return QueueBuilder.durable(BACKUP_QUEUE_NAME).build();
    }

    // 声明备份队列绑定关系
    @Bean
    public Binding backupQueueBindingBackupExchange(@Qualifier("backupQueue") Queue backupQueue,
                                                    @Qualifier("backupExchange") FanoutExchange backupExchange) {
        return BindingBuilder.bind(backupQueue).to(backupExchange);
    }

    //报警队列
    @Bean("warningQueue")
    public Queue warningQueue() {
        return QueueBuilder.durable(WARNING_QUEUE_NAME).build();
    }

    // 声明报警队列绑定关系
    @Bean
    public Binding warningQueueBindingBackupExchange(@Qualifier("warningQueue") Queue warningQueue,
                                                     @Qualifier("backupExchange") FanoutExchange backupExchange) {
        return BindingBuilder.bind(warningQueue).to(backupExchange);
    }

}
